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Finding the Fourth Proportional to 193.89, 292.16 and 160.39

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Solution

The fourth proportional to 193.89, 292.16 and 160.39 is: 241.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.89 : 292.16 = 160.39 : x
  2. Step 2: Convert to fraction form
    193.89/292.16 = 160.39/x
  3. Step 3: Cross multiply
    193.89x = 292.16 × 160.39
  4. Step 4: Simplify right side
    193.89x = 46,859.54
  5. Step 5: Solve for x
    x = 46,859.54/193.89
  6. Step 6: Final answer
    x = 241.68

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.